OBDII function: 1. Read Codes 2. Erase Codes 3. I/M Readiness -- I/M Readiness indicates whether or not the various emissions-related systems on the vehicle are operating properly and are ready for Inspection and Maintenance testing. 4. Data Stream 5. Freeze Frame -- When an emission-related fault occurs, certain vehicle conditions are recorded by the on-board computer. This information is referred to as freeze frame data. Freeze Data is a snapshot of the operating conditions at the time of an emission-related fault. 6. O2 Sensor Test -- This option allows retrieval and viewing of O2 sensor test results for most recently performed tests from the vehicle’s on-board computer. 7. On-Board Monitoring -- This function can be utilized to read the results of on-board diagnostic monitoring tests for specific components/systems. 8. Evap System Test -- The EVAP test function lets you initiate a leak test for the vehicle’s EVAP system. Before using the system test function, refer to the vehicle’s service repair manual to determine the procedures necessary to stop the test. 9. Vehicle Information -- The option displays the vehicle identification number (VIN), the calibration verification number (CVN), and other information of the test vehicle. 10.Retrieve generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes and pending codes 11.Turn off Check Engine Light (MIL), clear codes and reset monitors 12. Read live PCM datastream 13. Support CAN (Controller Area Network) and all other 14.Multilingual menu and DTC definitions- English, Spanish, and German, etc 15.Read pending DTCs 16.Read permanent DTCs 17. DTCs search 18. Supports all the OBDII/EOBD test modes include: CAN, ISO9141, KWP2000, J1850 VPW and J1850 PWM. 19. Works on all 2001 and later OBDII compliant PETROL European vehicles 20. Works on all 2004 and later OBDII compliant DIESEL European vehicles 21. Works on all 1996 and later OBDII compliant US and Asian vehicles 22. View & Graph Live Data in Color Graphing and blazing fast refresh rate for better graphing and live data readings. 23. Comprehensive Help, Including OBD Parameter, Mode Explanations & More

When choosing option B, please make sure to follow exactly the following instruction step by step.

The updating instruction for option B is quite different from option A. It is not necessary for you to download the update software package to your computer. But you need to make sure your computer is well connected to internet because option B obtains update database from remote server directly via iCarsoft Updating Tool automatically and completes update.